Chusetts



E. V. HILL.

COIN SELECTOR.

{\PPLICATION FILED MAR. B) 1919.

Patented Oct. 5, 1920.

2 SHEETSSHEET 1.

E. V. HlLL.

com SELEQTO R. APPLICATION FILED MAR. 8, I919.

Patented Oct. 5, 1920.

' UNITED STATES PATENT OFFICE.

ERNST V. HILL, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO NATIONAL SALES MACHINE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

COIN-SELECTOR.

Specification of Letters Patent. Patent d O t 5 1920 Application filed March 8, 1919. Serial No. 281,330.

T 0 all whom it may concern:

' Be it known that I, ERNST V. HILL,'2L sub- 'ect of the King of Sweden, residing at Vorcester, in the county of lVorcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in Coin-Selectors, of which the following, together. withthe accompanying drawings, is a specification.

The present invention relates to devices for separating standard coins of a predetermined denomination from counterfeits, slugs, washers, and other spurious disk-like bodies of generally similar dimensions. The

present improvements are applicable to the type of coin selector fully illustrated and described in the United States Letters Pat- .ent to Keith, No. 1,236,870, dated August 14:,

-United States coinage.

The present invention embodies, in addition to the fundamental principles of the selector set forth in my aforesaid copending applications, certain novel principles relating to the accurate measurement and calipering of coins that are especially useful in connection with pieces of ten cent denomination, both of the old and thenew In common with the machines of the Keith patent and my aforesaidv copending' applications, the machine of thepresent invention is constructed on the duplex principle, 2'. 6., being so designed as to accept standard coins of the same denomination, but oftwo difierent sets of dimensions. The machine of the present invention differs from the machines of my .aforesaid copending applications only as regards the construction, arrangement, and principle of operation of the several coin measuring and cal pering instrumentalities,

. and consequently, the description and drawand i Fig. 3 1s a detail view of one of the measuring members.

machine is carried in the usual elongated casing 1, which contains, as in the machines of the Reithpatent and my aforesaid co-' pending applications, astationary cylindrical barrel 2 and a movable cylindrical barrel 3. These barrels provide the similar cooperating sets of coin measuring instrumentalities that constitute the subject matter of the present invention; the varying amounts by which said instrumentalities are moved'are availed of to control the position of opposite pairs of pendulums at, 5 and 6, 7, of the same character as the pendulums provided in the machines of the Keith patent and my aforesaid copending applications. The ends of said pendulums are adapted to cooperate with suitable sets of wards and recesses carried by a pair of valve controlling levers 8, 8, one adapted for movement in the case of a standard coin of one set of dimensions, and the other adapted for movement in the case of a standard coin of the same denomination, but of a different set of dimensions, as in the machines of the Reith'patent and my aforesaid copending applications.

Said levers 8, 8 are operated upon by a spring 9 and attheir ends are normally in engagement with a cam 10 on shaft 11, the rotation of which is communicated to the movable barrel 3. by means of a connecting link 12, sleeve 13, spring 14 and plate 15,

in precisely the same manner as described by the pendulums 4', 5 and 6, 7 and also the positions assumed by a pair of thickness pendulums, not shown, that are controlled by the cooperating annular knife edges '16 of said barrels 2 and 3, are the determining factors in the movement of one or the other of the levers 8 against the low portions of camv 10. If the coin undergoing measurement'is correct, one orthe other of the levers 8 will be allowed to move upwardly by said pendulums, and this movement is transmitted to. a pivoted coin directing valve 17, that operates to procure acceptance of the coin, as in the machines of the Keith patent and my aforesaid copending applications. On the other hand, if the coin is spurious or doesv not correspond to either of the two sets of dimensions contemplated by the machine, neither of the levers 8, 8, is allowed to move, and the valve 17 is held in such a position as to reject said coin. The instrumentalities which constitute the subject matter of the present invention and to which the movements of the several pendulums are delicately responsive, will now be described in detail.

Each barrel 2, 3 contains a plunger 18 which is of two diameters, slidably mounted in the barrel, and urged yieldingly outward by means of springs 19 bearing against shoulders 20 or said barrels. These plunge-rs 18 contain the sets of measuring instrumentalities that make contact with the two faces of the coin when the latter is received between them, said coin being centered with respect to said plungers by means of a sliding block 21, carried by barrel 3, and said coin being gripped in said centered position by the knife edges 16, 16, precisely the same as in the machines of the Keith p'atent'and my aforesaid copending applications.

Each plunger 18 contains a concentric slidable plunger mechanism which is constituted by a plurality of annularly arranged plunger sections or segments 22, the latter presenting an annular series of knife edges 23. Each plunger section 22 has a flange portion 2-l that bears against a shoulder 25 of plunger 18, said series of flanges 22L being yieldingly held against the shoulder 25 by means of a series of springs 26, carried by studs 27 that project outwardly from said flanges 24. The springs 26 are confined at their outer ends in recesses provided in plates 28, 28 that close the end of the respective barrels 2 and 3.

The plunger sections 22 are slidable between their surrounding plunger 18 and an annular inner sleeve 29, the periphery of which is provided with a plurality o1? longitudinal grooves or slots, each adapted to receive a slidable member 30, Fig. 3. The inward movement of each slidable member 30 is limited by the contact of a shoulder 31 thereon with cooperating shoulder 32 of sleeve 29. Each member 30'bears at its outer end against a sliding pin 33, which latter has a collar 34 that takes the pressure of a spring 35. Each pin 33 is supported for sliding movement in the plate 28 and in a flange 36 of sleeve 29.

Said sleeve 29 in addition to its outwardly directed annular flange 36, which finds a sliding lit in plunger 18, is provided with an inwardly directed flange 37 which is adapted to slide on the inner concentric sleeve 38. The flange 37 provides bearing holes for an annular series of gaging pins 39, as herein after described.

The flange 36, in addition to providing bearings for the sliding pins 33, also provides clearance holes for studs 27. Said flange 36 carries a. stud -l1 which is adapted .to make contact with an adjusting screw 42 that is carried by a lever 43, pivoted at t]; in plunger 18. As in the machines of the aforesaid lleith patent, and my aforesaid copending applications, said levers a3, a3 are utilized to control the positions of one of said pendulums 4, 5, the longer arms of said levers projecting through slots in the barrels 2, 3, and being operated upon by springs The flange 36 of sleeve 29 also is adapted to take the bearing of a spring 4-6, which is supported by stud 27, and confined between said ilange'imd the flange 2a of flange section-22.

Each gaging pin 39 is slidable in the inner flange 37 of sleeve 29 and in the outer flange -51? of sleeve 38. Each pin '39 has an inte ral collar 48 to receive the pressure oi a spring 4-9, which yieldingly tends to hold said collar against the outer side of flange 47. The sleeve 38, which is slidable within the sleeve 29 and plunger 18, furnishes a bearing for spring pressed center pin 50, and the l of said sleeve 38 has suitable clearance holes for studs 27 and all. Said flange l-Y receives the bearing of a spring 51, carried on stud 27 between said flange i? and flange 24:. Said flange 4L7 also carries a screw 52, which is adapted to make contact with an adjusting screw 53 that is carried by lever The levers 54-, pivoted at in the plunger-s 18, are utilized to control the positions of the other set of pendulums 3, 7, as fully described in the aforesaid Reith patent and in my aforesaid copending applications, said levers 54- being acted upon by springs 56.

ll hen a coin is dropped into slot 5?", its downward movement is arrested by suitable devices, not herein shown, but fully described in the aforesaid lleith patent, so that it comes to rest in a central position with rcspect to the measuring points and edges above described. Under these conditions the coin directing valve 17 is in its norm a]. position, namely in the position adapted to direct the coin into the compartment reserved for spurious or counterfeit pieces.- The lovers 8, S are prevented from moving under the action of spring 9, either because they are in engagement with the concentric part of cam 10, or because the ends of one or more of the pendulums l, 6, 7, or the thickness iendulums, not shown, are opposite and in contact with the wards or projections carried by said levers.

Upon rotation of shaft 11 through slightly more than quarter of a revolution, the barrel 3 begins to move toward the barrel 2, it being noted that the movement of said shaft is transmitted through link 12 to the sleeve 13, spring-1st, and plate 15, which latter first acts through springs 58 to move the block 2i toward the barrel 2, and thereafter acts to bodily move the barrel 3 in the same direction. This primary movement of the block 21 causes it to-receive within its central eavity the coin which has been arrested in its passage through slot 57 by the arresting mechanism, not shown. The subsequent movement of the barrel 3 with its knife edges, pins and other measuring instrumentalities into engagement with the coin occurs while the shaft 11 is so moving that the link 12"is approaching a horizontal position, or during the first half of the forward movement of crank 59 on said shaft. As said of the coin just inside of its rim orflange,

thus firmly gripping and holding the coin within the cylindrical cavity of block 21. The engagement of these "knife edges with the coin determines the amount of inward movement of barrel 3, and as described in the Keith patent and in'my aforesaid copending applications, a pair of thickness pe'ndulums, not herein shown, since they form 110 part ofthe present invention, are made responsive to this movement in such a manner as to permit the lifting of either one of the levers 8 if the thickness thus measured corresponds to the predetermined standard,

' provided of course the other pendulums 4 5 and 6, 7 will permit of this movement. These,

other pendulums 4, 5 and 6, 7 are controlled as above stated by the novel cooperating coin measuring instrumentalities herein described which are carried by the barrels 2 and 3 and the action of which will now be set forth in detail.

v The segmental knife edges 23 of plunger sections 22 are pressed inwardly against the opposite faces of the coin for variable distances, depending upon the relief of the coin at the different points of the circle engaged by said knife edges. In other words, the various plunger sections 22 will occupy different relative longitudinal positions when their respective knife edges are in con- I tact with the face of the coin; one of these action of springs 19, which tend to keep the shoulder 25 in contact with the flange 24. This outward movement of the plunger 18 changes the position of the 'pivot points 44 and 55'. Such a change in the positions of the pivot points 44 and 55 results in a ,variation of the movement of'the long arms of the levers 43 and 54. that would not otherwise occur if these pivot points were held stationary, and consequently a certain control is exerted over both sets of pendulums 4, 5 and 6, 7. From the above, it will be seen that the minimum relief of the coin on the circle engaged by the knife edges 23 results in a control of either the pendulum 4 or the pendulum 5, and also either the pendulum 6 or the pendulum 7 The next smallest measuring circle is that engaged by-the ends of the pins 30, which are moved outwardly by the coin relief against the pressure of springs 35. That pin 30 which moves the least, as determined by the minimum relief of the coin on the circle engaged by said pins, will determine the amount that sleeve 29 may be moved outwardly, due to the fact that the shoulder 31 is maintained in contact with shoulder 32 under the pressure of spring 35. This limited movement of sleeve 29 with its flange 36 is transmitted through stud 41,v contacting with adjustable screw 42, to rock the lever 43 about its pivot, this fact applying obviously to both levers 43, and thereby effecting a control of either the pendulum 4 or the pendulum 5, as the case may be. It will thus be seen that the minimum relief of the coin on the circle engaged by the pins 30 is availed of to control the movement of the set of pendulums 4, 5.

The contact of the coin being tested with the gaging pins 39 and with the center pin 50 causes the outward-movement of said pins in varying amounts. Of these several pins 39 and 50, that which moves the least determines the amount of movement of the flange 47, since the collars 48 of said pins are yieldingly pressed against the outer face of said flange. This limited movement of flange 47 is transmitted through screw 52 to adjusting screw 53 of lever 54, and thereby serves to rock said lever about its pivot, this applying obviously to both levers 54 and thereby effecting a control of either the pendulum 6 or the pendulum 7, as the case may be. It will thus be seenthat the minimum relief of the coin, as measured either by the pins 39 or by the pin 50, is availed of to control the movement of the pen dulums 6, 7.

From the foregoing it will be apparent that the measurement of the coin in the present selector on each of the several circles engaged by the measuring instrumentalities, is the measurement of minimum re lief; as regards the pendulums 41-, 5, their action is determined by the minimum relief measured by the members 30 and the plunger sections 22; and as regards the pcndulnms '6, 7, their action is determined by the minimum relief measured by the pins 39 and 50 and the plunger sections 22. In the present embodiment of the invention, applied to a machine of the duplex type, as illustrated in the Keith patent and in my aforesaid copending applications, it is obvious that it is immaterial in what manner the coin is presented to the slot 57, whether with its head side or its tail side facing the front of the machine. It is also obvious that for a given coin, such as a ten cent piece of the old United States coinage, one of the levers 8 will be allowed to rise, while for another coin of the same denomination, but different measurements, such as a ten cent piece of the new United States coinage, the other lever 8 will be allowed to rise. In this respect the machine of the present invention partakes of the same duplex principle as the machines of the Keith patent and my aforesaid copending applications. Since said principle constitutes no part of the present invention, a detailed elaboration thereof is deemed unnecessary.

I claim,

1. In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of both of said sets in accordance with the minimum relief of a group of points 011 the face of said coin.

2. In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of each of said sets in accordance with the minimum relief of the coin on two different circles of predetermined radius.

In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of both of said sets in accor dance with the minimum relief of a group of points on said coin, and means for determining the action of each of said sets separately, in accordance 1 ,esanas with the minimum reliefs of two different groups of points on said coin.

4. In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of both of said sets, together, in accordance with the minimum relief of a group of points on said coin, and means for determining the action of one of said sets in accordance with the minimum relief of another group of points on said coin.

5. In a coin selector, the combination with two sets of mechanism operative to control the acceptanceor rejection of a coin, of means for determining the action of one of said sets in accordance with the minimum relief of the coin on a circle of predetermined radius, and means for determining the action of both of said sets in accordance with the minimum relief of the coin on a circle of different radius.

6. In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of one of said sets in accordance with the minimum relief of the coin on a circle of predetermined radius, and means for determining the action of the other of said sets in accordance with the minimum relief of the coin on a circle of different radius.

7. In a coin selector, the combination with two sets of mechanism operative to control the acceptance or rejection of a coin, of means for determining the action of one of said sets in accordance with the minimum relief of the coin 011 a circle of prcdeten mined radius, means for determining the action of the other of said sets in accordance with the minimum relief of the coin on a circle of different radius, and means for determining the action of both of said sets, together, in accordance with the minimum relief of the coin on a circle of another different radius.

Dated this 26th day of February, 1919.

ERNST V. HILL.

lVitnesses NnLLm W'HALEN, PENELOPE Goarnnnnaorr. 

